11

Possible Causes

• •Faulty sensor
• •Damage or poor connection on ECM pins (Pin 27 for CAM + and Pin 28 for CAM -)
• •ECM not properly grounded or functioning
• •Faults in wiring or connections

Suggested Actions

1. 1Measure resistance across the sensor's output (Pin 2) and ground (Pin 3) terminals and compare to specifications
2. 2Check ECM pins (Pin 27 for CAM + and Pin 28 for CAM -) for damage or poor connection
3. 3Ensure the ECM is properly grounded and functioning
4. 4Repair wiring or connections as needed
5. 5Replace the sensor if found to be faulty
6. 6Clear the DTC from the ECM memory
7. 7Start the engine and monitor to see if DTC 11 reappears

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